adv_eisa.c revision 165102 
1/*-
2 * Device probe and attach routines for the following
3 * Advanced Systems Inc. SCSI controllers:
4 *
5 *   Single Channel Products:
6 *	ABP742 - Bus-Master EISA (240 CDB)
7 *
8 *   Dual Channel Products:
9 *	ABP752 - Dual Channel Bus-Master EISA (240 CDB Per Channel)
10 *
11 * Copyright (c) 1997 Justin Gibbs.
12 * All rights reserved.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 * 1. Redistributions of source code must retain the above copyright
18 *    notice, this list of conditions, and the following disclaimer,
19 *    without modification, immediately at the beginning of the file.
20 * 2. The name of the author may not be used to endorse or promote products
21 *    derived from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
27 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#include <sys/cdefs.h>
37__FBSDID("$FreeBSD: head/sys/dev/advansys/adv_eisa.c 165102 2006-12-11 18:28:31Z mjacob $");
38
39#include <sys/param.h>
40#include <sys/systm.h>
41#include <sys/kernel.h>
42#include <sys/module.h>
43#include <sys/lock.h>
44#include <sys/mutex.h>
45#include <sys/bus.h>
46
47#include <machine/bus.h>
48#include <machine/resource.h>
49#include <sys/rman.h>
50
51#include <dev/eisa/eisaconf.h>
52
53#include <dev/advansys/advansys.h>
54
55#define EISA_DEVICE_ID_ADVANSYS_740	0x04507400
56#define EISA_DEVICE_ID_ADVANSYS_750	0x04507500
57
58#define ADV_EISA_SLOT_OFFSET		0xc00
59#define ADV_EISA_OFFSET_CHAN1		0x30
60#define ADV_EISA_OFFSET_CHAN2		0x50
61#define ADV_EISA_IOSIZE			0x100
62
63#define ADV_EISA_ROM_BIOS_ADDR_REG	0x86
64#define ADV_EISA_IRQ_BURST_LEN_REG	0x87
65#define 	ADV_EISA_IRQ_MASK	0x07
66#define 	ADV_EISA_IRQ_10		0x00
67#define 	ADV_EISA_IRQ_11		0x01
68#define 	ADV_EISA_IRQ_12		0x02
69#define 	ADV_EISA_IRQ_14		0x04
70#define 	ADV_EISA_IRQ_15		0x05
71
72#define	ADV_EISA_MAX_DMA_ADDR   (0x07FFFFFFL)
73#define	ADV_EISA_MAX_DMA_COUNT  (0x07FFFFFFL)
74
75/*
76 * The overrun buffer shared amongst all EISA adapters.
77 */
78static	void*		overrun_buf;
79static	bus_dma_tag_t	overrun_dmat;
80static	bus_dmamap_t	overrun_dmamap;
81static	bus_addr_t	overrun_physbase;
82
83static const char*
84adv_eisa_match(eisa_id_t type)
85{
86	switch (type & ~0xF) {
87	case EISA_DEVICE_ID_ADVANSYS_740:
88		return ("AdvanSys ABP-740/742 SCSI adapter");
89		break;
90	case EISA_DEVICE_ID_ADVANSYS_750:
91		return ("AdvanSys ABP-750/752 SCSI adapter");
92		break;
93	default:
94		break;
95	}
96	return (NULL);
97}
98
99static int
100adv_eisa_probe(device_t dev)
101{
102	const char *desc;
103	u_int32_t iobase;
104	u_int8_t irq;
105
106	desc = adv_eisa_match(eisa_get_id(dev));
107	if (!desc)
108		return (ENXIO);
109	device_set_desc(dev, desc);
110
111	iobase = (eisa_get_slot(dev) * EISA_SLOT_SIZE) + ADV_EISA_SLOT_OFFSET;
112
113	eisa_add_iospace(dev, iobase, ADV_EISA_IOSIZE, RESVADDR_NONE);
114	irq = inb(iobase + ADV_EISA_IRQ_BURST_LEN_REG);
115	irq &= ADV_EISA_IRQ_MASK;
116	switch (irq) {
117	case 0:
118	case 1:
119	case 2:
120	case 4:
121	case 5:
122	    break;
123	default:
124	    printf("adv at slot %d: illegal "
125		   "irq setting %d\n", eisa_get_slot(dev),
126		   irq);
127	    return ENXIO;
128	}
129	eisa_add_intr(dev, irq + 10, EISA_TRIGGER_LEVEL);
130
131	return 0;
132}
133
134static int
135adv_eisa_attach(device_t dev)
136{
137	struct adv_softc *adv;
138	struct adv_softc *adv_b;
139	struct resource *io;
140	struct resource *irq;
141	int rid, error;
142	void *ih;
143
144	adv_b = NULL;
145
146	rid = 0;
147	io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
148	if (!io) {
149		device_printf(dev, "No I/O space?!\n");
150		return ENOMEM;
151	}
152
153	rid = 0;
154	irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
155				     RF_SHAREABLE | RF_ACTIVE);
156	if (!irq) {
157		device_printf(dev, "No irq?!\n");
158		bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
159		return ENOMEM;
160
161	}
162
163	switch (eisa_get_id(dev) & ~0xF) {
164	case EISA_DEVICE_ID_ADVANSYS_750:
165		adv_b = adv_alloc(dev, rman_get_bustag(io),
166				  rman_get_bushandle(io) + ADV_EISA_OFFSET_CHAN2);
167		if (adv_b == NULL)
168			goto bad;
169
170		/*
171		 * Allocate a parent dmatag for all tags created
172		 * by the MI portions of the advansys driver
173		 */
174		/* XXX Should be a child of the PCI bus dma tag */
175		error = bus_dma_tag_create(
176				/* parent	*/ NULL,
177				/* alignment	*/ 1,
178				/* boundary	*/ 0,
179				/* lowaddr	*/ ADV_EISA_MAX_DMA_ADDR,
180				/* highaddr	*/ BUS_SPACE_MAXADDR,
181				/* filter	*/ NULL,
182				/* filterarg	*/ NULL,
183				/* maxsize	*/ BUS_SPACE_MAXSIZE_32BIT,
184				/* nsegments	*/ ~0,
185				/* maxsegsz	*/ ADV_EISA_MAX_DMA_COUNT,
186				/* flags	*/ 0,
187				/* lockfunc	*/ busdma_lock_mutex,
188				/* lockarg	*/ &Giant,
189				&adv_b->parent_dmat);
190
191		if (error != 0) {
192			printf("%s: Could not allocate DMA tag - error %d\n",
193			       adv_name(adv_b), error);
194			adv_free(adv_b);
195			goto bad;
196		}
197
198		adv_b->init_level++;
199
200		/* FALLTHROUGH */
201	case EISA_DEVICE_ID_ADVANSYS_740:
202		adv = adv_alloc(dev, rman_get_bustag(io),
203				rman_get_bushandle(io) + ADV_EISA_OFFSET_CHAN1);
204		if (adv == NULL) {
205			if (adv_b != NULL)
206				adv_free(adv_b);
207			goto bad;
208		}
209
210		/*
211		 * Allocate a parent dmatag for all tags created
212		 * by the MI portions of the advansys driver
213		 */
214		/* XXX Should be a child of the PCI bus dma tag */
215		error = bus_dma_tag_create(
216				/* parent	*/ NULL,
217				/* alignment	*/ 1,
218				/* boundary	*/ 0,
219				/* lowaddr	*/ ADV_EISA_MAX_DMA_ADDR,
220				/* highaddr	*/ BUS_SPACE_MAXADDR,
221				/* filter	*/ NULL,
222				/* filterarg	*/ NULL,
223				/* maxsize	*/ BUS_SPACE_MAXSIZE_32BIT,
224				/* nsegments	*/ ~0,
225				/* maxsegsz	*/ ADV_EISA_MAX_DMA_COUNT,
226				/* flags	*/ 0,
227				/* lockfunc	*/ busdma_lock_mutex,
228				/* lockarg	*/ &Giant,
229				&adv->parent_dmat);
230
231		if (error != 0) {
232			printf("%s: Could not allocate DMA tag - error %d\n",
233			       adv_name(adv), error);
234			adv_free(adv);
235			goto bad;
236		}
237
238		adv->init_level++;
239		break;
240	default:
241		printf("adveisaattach: Unknown device type!\n");
242		goto bad;
243		break;
244	}
245
246	if (overrun_buf == NULL) {
247		/* Need to allocate our overrun buffer */
248		if (bus_dma_tag_create(
249				/* parent	*/ adv->parent_dmat,
250				/* alignment	*/ 8,
251				/* boundary	*/ 0,
252				/* lowaddr	*/ ADV_EISA_MAX_DMA_ADDR,
253				/* highaddr	*/ BUS_SPACE_MAXADDR,
254				/* filter	*/ NULL,
255				/* filterarg	*/ NULL,
256				/* maxsize	*/ ADV_OVERRUN_BSIZE,
257				/* nsegments	*/ 1,
258				/* maxsegsz	*/ BUS_SPACE_MAXSIZE_32BIT,
259				/* flags	*/ 0,
260				/* lockfunc	*/ busdma_lock_mutex,
261				/* lockarg	*/ &Giant,
262				&overrun_dmat) != 0) {
263			adv_free(adv);
264			goto bad;
265       		}
266		if (bus_dmamem_alloc(overrun_dmat,
267				     &overrun_buf,
268				     BUS_DMA_NOWAIT,
269				     &overrun_dmamap) != 0) {
270			bus_dma_tag_destroy(overrun_dmat);
271			adv_free(adv);
272			goto bad;
273		}
274		/* And permanently map it in */
275		bus_dmamap_load(overrun_dmat, overrun_dmamap,
276				overrun_buf, ADV_OVERRUN_BSIZE,
277				adv_map, &overrun_physbase,
278				/*flags*/0);
279	}
280
281	/*
282	 * Now that we know we own the resources we need, do the
283	 * card initialization.
284	 */
285
286	/*
287	 * Stop the chip.
288	 */
289	ADV_OUTB(adv, ADV_CHIP_CTRL, ADV_CC_HALT);
290	ADV_OUTW(adv, ADV_CHIP_STATUS, 0);
291
292	adv->chip_version = EISA_REVISION_ID(eisa_get_id(dev))
293			  + ADV_CHIP_MIN_VER_EISA - 1;
294
295	if (adv_init(adv) != 0) {
296		adv_free(adv);
297		if (adv_b != NULL)
298			adv_free(adv_b);
299		return(-1);
300	}
301
302	adv->max_dma_count = ADV_EISA_MAX_DMA_COUNT;
303	adv->max_dma_addr = ADV_EISA_MAX_DMA_ADDR;
304
305	if (adv_b != NULL) {
306		/*
307		 * Stop the chip.
308		 */
309		ADV_OUTB(adv_b, ADV_CHIP_CTRL, ADV_CC_HALT);
310		ADV_OUTW(adv_b, ADV_CHIP_STATUS, 0);
311
312		adv_b->chip_version = EISA_REVISION_ID(eisa_get_id(dev))
313				    + ADV_CHIP_MIN_VER_EISA - 1;
314
315		if (adv_init(adv_b) != 0) {
316			adv_free(adv_b);
317		} else {
318			adv_b->max_dma_count = ADV_EISA_MAX_DMA_COUNT;
319			adv_b->max_dma_addr = ADV_EISA_MAX_DMA_ADDR;
320		}
321	}
322
323	/*
324	 * Enable our interrupt handler.
325	 */
326	bus_setup_intr(dev, irq, INTR_TYPE_CAM|INTR_ENTROPY, adv_intr, adv, &ih);
327
328	/* Attach sub-devices - always succeeds */
329	adv_attach(adv);
330	if (adv_b != NULL)
331		adv_attach(adv_b);
332
333	return 0;
334
335 bad:
336	bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
337	bus_release_resource(dev, SYS_RES_IRQ, 0, irq);
338	return -1;
339}
340
341static device_method_t adv_eisa_methods[] = {
342	/* Device interface */
343	DEVMETHOD(device_probe,		adv_eisa_probe),
344	DEVMETHOD(device_attach,	adv_eisa_attach),
345	{ 0, 0 }
346};
347
348static driver_t adv_eisa_driver = {
349	"adv", adv_eisa_methods, sizeof(struct adv_softc)
350};
351
352static devclass_t adv_eisa_devclass;
353DRIVER_MODULE(adv, eisa, adv_eisa_driver, adv_eisa_devclass, 0, 0);
354MODULE_DEPEND(adv, eisa, 1, 1, 1);
355